The submission here says nothing about who owns the mystery domain except that they're willing to sell it. You don't need to be a "legitimate company with a legitimate purpose" to register domains. I own domains I only use for mailboxes; you can't take them by paying $350 to register them as trademarks. If I put a "for sale" page on the domain, that wouldn't let you take them either.
The UDRP only allows a dispute when the current owner is using the name to intentionally "attract, for commercial gain, Internet users to your web site or other on-line location, by creating a likelihood of confusion with the complainant's mark...". Or, if the domain was registered for the purpose of selling it to the trademark holder, but that's not the case since the domain wasn't registered after the trademark and the owner didn't reach out to him.